CN220751563U - Pulse/photon counting type optical piece light transmittance detection device - Google Patents
Pulse/photon counting type optical piece light transmittance detection device Download PDFInfo
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- CN220751563U CN220751563U CN202322310034.8U CN202322310034U CN220751563U CN 220751563 U CN220751563 U CN 220751563U CN 202322310034 U CN202322310034 U CN 202322310034U CN 220751563 U CN220751563 U CN 220751563U
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- 230000003287 optical effect Effects 0.000 title claims abstract description 49
- 238000002834 transmittance Methods 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 238000007493 shaping process Methods 0.000 claims abstract description 14
- 230000003321 amplification Effects 0.000 claims description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 9
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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Abstract
The utility model discloses a pulse/photon counting type optical piece light transmittance detection device, which comprises a photon source used for emitting light signals, wherein an optical element to be detected and a light gathering prism are sequentially arranged behind the photon source, a photomultiplier used for receiving the light signals is arranged behind the prism, the photomultiplier is electrically connected with a signal amplifying and shaping circuit, the signal amplifying and shaping circuit is also electrically connected with a data processing circuit, and the photomultiplier converts the light signals into electric signals and then converts the electric signals into pulse signals through the signal amplifying and shaping circuit to be output to the data processing circuit. Through the mode, the pulse/photon counting type optical piece light transmittance detection device detects the light transmittance of various optical materials by using the pulse/photon counting mode, and has the characteristics of high sensitivity and high stability.
Description
Technical Field
The utility model relates to the field of optical detection, in particular to a pulse/photon counting type optical piece light transmittance detection device.
Background
At present, a technical scheme of high-sensitivity photomultiplier receiving by a strong light source incidence is mainly adopted for a glass sample light transmittance detection mode which is almost light-tight, a measurement beam collimated by the strong light source passes through a sample to be detected and becomes a weak scattered beam, the scattered beam is collected by an integrating sphere and subjected to photoelectric conversion by a photomultiplier sensor, and the scattered beam is collected by an AD and then sent to a central processor for calculation and processing. The disadvantage of this measurement is obvious: the system is complex, the response speed is low, the dynamic range is small, the stability is poor, and the system is easy to be interfered by background light.
Disclosure of Invention
The utility model mainly solves the technical problem of providing a pulse/photon counting type optical piece light transmittance detection device which uses a pulse/photon counting mode to detect the light transmittance of various optical materials and has the characteristics of high sensitivity and high stability.
In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a pulse photon counting type optical piece luminousness detection device, including the photon source that is used for sending the light signal, the rear of photon source sets gradually optical element and spotlight prism that awaits measuring, the rear of prism is equipped with the photomultiplier that is used for accepting the light signal, photomultiplier and signal amplification plastic circuit electric connection, signal amplification plastic circuit still with data processing circuit electric connection, photomultiplier converts the light signal into the signal of telecommunication after, through signal amplification plastic circuit conversion pulse signal mode output to data processing circuit.
In a preferred embodiment of the present utility model, the photon source, the optical element to be measured, the condensing prism and the signal amplifying and shaping circuit are all located inside the cassette.
In a preferred embodiment of the present utility model, the signal amplifying and shaping circuit includes an amplifier, a comparator and a pulse shaper connected in sequence, the amplifier is connected to the photomultiplier, and the pulse shaper outputs a pulse signal to the data processing circuit.
In a preferred embodiment of the present utility model, the data processing circuit obtains the count of the optical signal intensity by the pulse signal, and compares the count with the optical signal intensity of the photon source so as to obtain the light transmittance of the optical element to be measured.
In a preferred embodiment of the utility model, the data processing circuit is located outside the cassette.
In a preferred embodiment of the present utility model, a TEC refrigerator is further provided in the cassette, and the TEC refrigerator cools the interior of the cassette to maintain the photomultiplier in a constant temperature state.
In a preferred embodiment of the utility model, the photomultiplier tube is connected with a high-voltage power supply module and a voltage divider.
The beneficial effects of the utility model are as follows: the pulse/photon counting type optical piece light transmittance detection device disclosed by the utility model can be used for converting the optical signal into the electric signal through the photomultiplier tube, and rapidly acquiring the pulse signal corresponding to the optical element to be detected in a pulse signal conversion mode, so that the measurement sensitivity is high.
According to the pulse/photon counting type optical piece light transmittance detection device, the measured pulse signal is compared with the photon source light signal intensity through the data processing circuit, so that the light transmittance of an optical element to be detected can be obtained, the measurement efficiency is high, and the stability is good.
According to the pulse/photon counting type optical piece light transmittance detection device, the whole device is placed in the cassette, so that external illumination interference is avoided, and the photomultiplier is at a good environment working temperature by arranging the TEC refrigerator, so that measurement accuracy is improved.
Drawings
For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic diagram of a pulse/photon counting optical device according to a preferred embodiment of the present utility model;
the components in the drawings are marked as follows: 1. photon source 2, optical element to be measured 3, condensing prism 4, photomultiplier 5, signal amplifying shaping circuit 51, amplifier 52, comparator 53, pulse shaper 6, data processing circuit 7, cassette 8, TEC refrigerator.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below. The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are not intended to limit the scope of the utility model, since any modification, variation in proportions, or adjustment of the size, etc. of the structures, proportions, etc. should be considered as falling within the spirit and scope of the utility model, without affecting the effect or achievement of the objective. Also, the terms "upper", "lower", "left", "right", "middle", and the like are used herein for descriptive purposes only and are not intended to limit the scope of the utility model for modification or adjustment of the relative relationships thereof, as they are also considered within the scope of the utility model without substantial modification to the technical context.
Referring to fig. 1, a pulse/photon counting optical element light transmittance detecting device includes a photon source 1 for emitting light signals, and an optical element 2 to be detected and a condensing prism 3 are sequentially disposed behind the photon source 1. A photomultiplier 4 for receiving the optical signals is arranged behind the prism, and a high-voltage power supply module and a voltage divider are connected to the photomultiplier 4. The photomultiplier 4 is electrically connected with the signal amplifying and shaping circuit 5. The photon source 1, the optical element to be detected 2, the condensing prism 3 and the signal amplifying and shaping circuit 5 are arranged inside the cassette 7, so that the interference of an external light source on detection is prevented. The cassette 7 has a door that can be opened, is convenient for put the optical material that awaits measuring on the detection support of cassette 7 inside, thereby satisfies the detection of different optical materials that await measuring through changing the optical material that awaits measuring. The detection support is of a conventional structure and will not be described in detail herein. The signal amplifying and shaping circuit is also electrically connected with the data processing circuit 6. The data processing circuit 6 is located outside the cassette 7, and the data processing circuit 6 is a conventional known technology and will not be described here.
The inside of the cassette 7 is also provided with a TEC refrigerator 8, and the TEC refrigerator 8 cools the inside of the cassette 7 so as to maintain the photomultiplier 4 in a constant temperature state. In order to reduce the influence of temperature change on the photomultiplier 4, the inside of the cassette 7 is ensured to be in a constant temperature state through the TEC refrigerator 8, and the detection result is prevented from being influenced by the high temperature of the external environment.
The signal amplification and shaping circuit 5 includes an amplifier 51, a comparator 52, and a pulse shaper 53, which are sequentially connected, the amplifier 51 being connected to the photomultiplier 4, and the pulse shaper 53 outputting a pulse signal to the data processing circuit 6. The photomultiplier 4 converts the optical signal into an electrical signal, and then outputs the electrical signal to the data processing circuit 6 in a manner of converting the electrical signal into a pulse signal by the signal amplification and shaping circuit 5. The data processing circuit 6 acquires the optical signal intensity count by switching on the pulse signal, and compares the optical signal intensity count with the optical signal intensity of the photon source 1 so as to acquire the light transmittance of the optical element 2 to be detected. The photon source 1 adopts a C14 standard photon source 1, the light signal emitted by the C14 standard photon source 1 passes through the optical material to be detected, then the light condensing prism 3 collects scattered light beams, the photomultiplier 4 receives the light signal and outputs a current signal, the current signal is output in a pulse signal mode through the signal amplifying and shaping circuit 5, the pulse count is carried out to obtain the light signal intensity count of the optical material attenuation, and the material light transmittance can be obtained through comparison with the light signal intensity count of the standard photon source.
Compared with the prior art, the pulse/photon counting type optical piece light transmittance detection device provided by the utility model detects the light transmittance of various optical materials in a pulse/photon counting mode, and has the characteristics of high sensitivity and high stability.
The utility model and its embodiments have been described above by way of illustration and not limitation, and the utility model is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.
Claims (7)
1. The utility model provides a pulse photon counting type optical piece luminousness detection device, its characterized in that includes the photon source that is used for sending the light signal, the rear of photon source sets gradually optical element and spotlight prism that awaits measuring, the rear of prism is equipped with the photomultiplier that is used for accepting the light signal, photomultiplier and signal amplification plastic circuit electric connection, signal amplification plastic circuit still with data processing circuit electric connection, photomultiplier converts the light signal into the signal of telecommunication after, through signal amplification plastic circuit conversion pulse signal mode output to data processing circuit.
2. The pulse/photon counting optical component light transmittance detection device according to claim 1, wherein the photon source, the optical component to be measured, the condensing prism, and the signal amplifying and shaping circuit are all located inside a cassette.
3. The pulse/photon counting optical component light transmittance detection device according to claim 2, wherein the signal amplification and shaping circuit comprises an amplifier, a comparator and a pulse shaper connected in sequence, the amplifier being connected with a photomultiplier, the pulse shaper outputting a pulse signal to a data processing circuit.
4. The pulse/photon counting type optical component light transmittance detection device according to claim 1, wherein the data processing circuit obtains the light signal intensity count by the pulse signal and compares the light signal intensity count with the light signal intensity of the photon source so as to obtain the light transmittance of the optical component to be detected.
5. The pulse/photon counting optics light transmittance detection device according to claim 4, wherein the data processing circuitry is located outside of the cassette.
6. The pulse/photon counting optical piece light transmittance detection device according to claim 5, wherein a TEC refrigerator is further provided in the cassette, and the TEC refrigerator cools the interior of the cassette to maintain the photomultiplier in a constant temperature state.
7. The pulse/photon counting optical piece transmittance detection device according to claim 6, wherein the photomultiplier tube is connected with a high-voltage power supply module and a voltage divider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322310034.8U CN220751563U (en) | 2023-08-28 | 2023-08-28 | Pulse/photon counting type optical piece light transmittance detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322310034.8U CN220751563U (en) | 2023-08-28 | 2023-08-28 | Pulse/photon counting type optical piece light transmittance detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220751563U true CN220751563U (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322310034.8U Active CN220751563U (en) | 2023-08-28 | 2023-08-28 | Pulse/photon counting type optical piece light transmittance detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220751563U (en) |
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2023
- 2023-08-28 CN CN202322310034.8U patent/CN220751563U/en active Active
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